Abstract: A plasticizable heat-insulating composition compatible with polyvinyl acetal resins and mixed with polyvinyl acetal resin for forming a mixture for a plasticizing process for making a transparent intermediate heat-insulating sheet, as well as a transparent heat-insulating sandwich-structured panel that demonstrates high transparency, high wide-range near infrared absorbance and high heat-insulation index, so as to improve their heat-insulating and energy-saving functions.

Abstract: A method for manufacturing a low thermal-impedance insulated metal substrate has steps of providing an electrical-conductive metal layer; forming a first thermal-conductive polymeric composite layer on the electrical-conductive metal layer; forming a second thermal-conductive polymeric composite layer on the first thermal-conductive polymeric composite layer; and adhere a thermal-conductive metal layer on the second thermal-conductive polymeric composite layer by hot-pressing process. Therefore, the low thermal-impedance insulated metal substrate of the present invention has lower thermal-impedance, lower coefficient of thermal expansion and higher electrical reliability.

Abstract: A method for manufacturing a low thermal-impedance insulated metal substrate has steps of providing an electrical-conductive metal layer; forming a first thermal-conductive polymeric composite layer on the electrical-conductive metal layer; forming a second thermal-conductive polymeric composite layer on the first thermal-conductive polymeric composite layer; and adhere a thermal-conductive metal layer on the second thermal-conductive polymeric composite layer by hot-pressing process. Therefore, the low thermal-impedance insulated metal substrate of the present invention has lower thermal-impedance, lower coefficient of thermal expansion and higher electrical reliability.

Abstract: The present invention discloses an adhesive composition for flexible printed circuit board comprising the following component: (a) an epoxy resin; (b) an accelerator having a structure of one of the following general formulas: wherein, E represents sulfur, nitrogen or phosphorus; Ar represents an aromatic ring; R1 is the same or different and represents a substituted or unsubatituted monovalent hydrocarbon group, a hydroxyl group, an alkoxy group, a nitro group, a cyano group or a halogen atom; R2 and R3 each represents a hydrogen atom and a methyl group; R4 is the same or different and represents a substituted or unsubstituted monovalent hydrocarbon group; R5 represents a substituted or unsubstituted pyridinium group; a represents an integer of 0 to 2; and b represents 2 to 3; (c) a nitrile rubber having carboxyl groups, and a carboxyl terminated butadiene acrylonitrile is preferred; and (d) an inorganic filler, an aluminum hydroxide is preferred.